File: io_pipe_rw.rb

package info (click to toggle)
ruby3.3 3.3.8-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 153,620 kB
  • sloc: ruby: 1,244,308; ansic: 836,474; yacc: 28,074; pascal: 6,748; sh: 3,913; python: 1,719; cpp: 1,158; makefile: 742; asm: 712; javascript: 394; lisp: 97; perl: 62; awk: 36; sed: 23; xml: 4
file content (13 lines) | stat: -rw-r--r-- 279 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
# Measure uncontended GVL performance via read/write with 1:1 threading
# If we switch to M:N threading, this will benchmark something else...
r, w = IO.pipe
src = '0'.freeze
dst = String.new
i = 0
while i < 1_000_000
  i += 1
  w.write(src)
  r.read(1, dst)
end
w.close
r.close